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them share their photographs, share their cell phone and iphone videos. what kind of technology is available to counterterrorism officials, to law enforcement, to enhance these visuals? i know we have an idea from movies that one can just enhance these images to a remarkable degree. is that pure fiction or is there something there that law enforcement can actually do when it comes to that technology? >> jake, i think you're on to something. first of all, the technology is dramatically improved year by year. and the opportunity to take a granular digital photograph or videos and break them down for much clearer pictures is just part of the scientific approach that the investigators on the scene have taken. it's very incremental, very methodical. think if you would of those huge jigsaw puzzles with a thousand or 5,000 pieces. you spread all over a table and you start trying to put those pieces together bit by bit. and it's pains taking work and every once in a while there may be one piece of the puzzle that jumps out at you and that is maybe what commissioner davis will talk about
. and even though this has been used, this type of technology has been used by al qaeda and taliban in the past, it is also sadly in this age of the internet a technology you can go online and essentially find a how-to to build a bomb like this. no one has ruled out domestic terrorism, or this being a single lone wolf bomber, perhaps someone with help. right now, they say those are among the many, many questions. >> and it's significant also that no one has claimed responsibility. there's almost a thunderous silence, if you will. that speaks volumes to a lot of these investigators. >> if you look past backwards, past terrorist attacks, obviously if it's al qaeda, if it's al qaeda an the arabian peninsula, even a domestic political group trying to make a point, often there's a claim of responsibility in the first day or two. the silence is part of the investigation, and a reminder to us that what is not being said and what we don't know is perhaps much more important than what we do know. >> john, don't go too far away. moments before the terror attack here in boston, 29-year-old kry
enhancement technology, mostly dprept sto from the department store, they clearly identified a suspect, a single suspect and an arrest has been made. a briefing scheduled for later this evening, obviously. >> so let's reset chronologically. do we know what point they wound up identifying somebody, do we know a time window? >> i can tell you i was on just before 10:00 last night with anderson cooper and an hour or so before that i talked to a boston source who said we're stymied at the moment. we're doing a great job with the forensics. we know how the bombs work. we know about their power. we have a very good idea of the timing obviously because of all of the video. the who part, this source said they were stymied, so clearly from yesterday evening to the overnight hours, in analyzing this additional video, they were all day yesterday canvassing through the neighborhood, it is a holiday, the stores were closed and on monday when this took place. they go in and say what do you got, and looking at reams of evidence and so many millions of frames of video and finally they got what they we
especially. they do have technology where they will swipe, they'll use a piece of cloth and they will swipe a bag or purse and then run a quick test on the residue. so that happens, but that is not done for every person entering the complex. that's done as in some airports just randomly. and apparently there was no reason for this man to be stopped according to those regular security procedures at the capitol. what really seemed to raise the alarm bells here is that he was able to deliver letters in person against protocol that somehow members of some senate offices accepted packages and letters in person that they should not have. and that word apparently got to capitol police in time for them to find this man here in the capitol complex in the heart building i'm told and stop him and they are now questioning him. >> i assume they'll be going through those suspicious envelopes in the backpack as well. standby, lisa desjardins is in the building being evacuated right now. dana bash is standing by. she's at the russell center office building. brianna keilar's at the white house. we're awaiti
to this place. the death of a police officer at massachusetts institute of technology reported at 12:45 a.m. today. after that, cnn's drew griffin reported that explosives may have been involved in the situation. and then we were off to the races. police advising watertown residents to stay inside. the fbi saying it is trying to determine right around 2:31 in the morning if that situation in watertown, of course, was connected to the boston marathon bombing and we all know what happened after that. now, we're going to go back to anderson, and anderson, i can take you all the way through the chronology, but bring us up to date with what you have. >> joe, it is interesting, just going through the chronology with you, again, this did begin with that report of a robbery at a convenience store in cambridge. cnn was on the air reporting it live with the killing of the police officer, 26-year-old police officer, young man, whose colleagues have come out with effusive praise for him over the last several hours obviously. officer wounded in that -- early morning hours in watertown, and that was re
Search Results 0 to 4 of about 5

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